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Epson Stylus Color 660 Service Manual

Color ink jet printer
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Stylus Color 660
EPSON
EPSON
EPSON France S.A.
SERVICE MANUAL

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Summary of Contents for Epson Stylus Color 660

  • Page 1 Stylus Color 660 EPSON EPSON EPSON France S.A. SERVICE MANUAL...

  • Page 2: Epson Stylus Color

    Color ink jet printer EPSON Stylus COLOR 660 SEJ99005...
  • Page 3 The contents of this manual are subject to change without notice. All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 4 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.
  • Page 5 PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of Stylus COLOR 660. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.
  • Page 6 Revision Status Revision Issued Date Description August 25, 1999 First Release...
  • Page 7 C H A P T E R PRODUCT DESCRIPTION...
  • Page 8 EPSON Stylus Color 660 Revision A 1.1 FEATURES Compact size 429mm (W) x 231mm (D) x 155mm (H) (for Stylus Color 440) are designed for PC users at home E P S O N S t y l u s C o l o r 6 6 0 / 6 6 0 429mm (W) x 231mm (D) x 157mm (H) (for Stylus Color 640, and low price for hat high performance.
  • Page 9 E P S O N S t y l u s C o l o r 4 4 0 / 6 4 0 / 7 4 0 S e r v i c e M a n u a l . The rest contents of Product Description is the same as of EPSON Stylus Color 640/660/740.
  • Page 10 C H A P T E R OPERATING PRINCIPLES...
  • Page 11 EPSON Stylus Color 660 Revision A The contents of Operating Principles is the same as of EPSON Stylus Color 640/660/740. Chapter 2 Operating Principles...

  • Page 12: Trouble Shooting

    C H A P T E R TROUBLE SHOOTING...
  • Page 13 EPSON Stylus Color 660 Revision A The contents of Trouble Shooting is the same as of EPSON Stylus Color 640/660/740. Chapter 3 Trouble Shooting...
  • Page 14 C H A P T E R DISASSEMBLY AND ASSEMBLY...
  • Page 15 EPSON Stylus Color 660 Revision A The contents of Disassembly and Assembly is the same as of EPSON Stylus Color640/660/740. Chapter 4 Disassembly and Assembly...
  • Page 16 C H A P T E R ADJUSTMENT...
  • Page 17 EPSON Stylus Color 660 Revision A 5.1 Overview Table below shows the actions taken and required adjustments in the order to be performed. This chapter describes adjustments required for Stylus Color 640/660 when the printer is disassembled and assembled after repair. Refer to...
  • Page 18 EPSON Stylus Color 660 Revision A 5.1.2 Adjustment Tools Required Table 5-3 below shows adjustment tools for Stylus Color 640/660. Table 5-3 Adjustment Tools Required Name Adjustment Item Contents/Spec. Thickness Gauge Parallelism Adjustment 1.04 mm Adjustment Each Mechanism Exclusive Program;...

  • Page 19: Adjustment By Adjustment Program

    EPSON Stylus Color 660 Revision A 5.2 Adjustment Main Menu This section explains the specific procedures for making the adjustments using the exclusive adjustment program for Stylus Color 640/660. 5.2.1 Adjustment by Adjustment Program Recovery Print A4 Maintenance Adjustment pattern...
  • Page 20 Figure 5-2. Initial Screen (1) 7. Program will be installed in your appointed folder. 10. Choose Stylus Color 660, and click OK. By doing so, the model 8. Go to the appointed folder and open the adjustment program. name will be written in the EEPROM.
  • Page 21 EPSON Stylus Color 660 Revision A 11. In the next screen, choose the market destination according to the 13. Following screen appears. market. Standard: All the market except ESP.India and Korea ESP.India: for ESP India Korea: for EKL NOTE: When you choose the market destination, the respective dot size used in the economy mode will be written in the EEPROM (6E<H>).
  • Page 22 EPSON Stylus Color 660 Revision A 14. When you select “Check this model name”, the following screen 15. After a few seconds, the model name appears on the screen shown appears. below. NOTE: While checking the model name, keep the printer ON.
  • Page 23 Revision A 17. In the initial screen (3) (Figure 5-4), select “Boot this program” and you will enter Stylus COLOR 660 SERVICE PROGRAM. 18. Stylus COLOR 660 SERVICE PROGRAM shown below appears. Figure 5-7. Stylus COLOR 660 SERVICE PROGRAM Chapter 5...
  • Page 24 After replacing the printer mechanism After replacing or removing the printhead 1. On the Stylus COLOR 660 SERVICE PROGRAM, select maintenance menu. Figure 5-9. Initial Ink Charge Before you set the initial ink charge, replace the...
  • Page 25 2. From Maintenance menu, select “Head cleaning”. The following screen appears. Stylus Color 660 have no dummy cleaning sequence called CL3, which was performed to prevent ink from being unnecessarily consumed when cleaning was repeated without any printout. However, Stylus Color 660 is alternatively equipped with the strongest cleaning sequence CL2 contained in this adjustment program.
  • Page 26 The program provided with this manual can let you confirm or clear the current protection counter value. [Confirming the current protection counter value] 1. On Stylus COLOR 660 SERVICE PROGRAM, select the Maintenance menu. Figure 5-13. Protection Counter CHECK/CLEAR Figure 5-12. Maintenance Menu...
  • Page 27 EPSON Stylus Color 660 Revision A 3. Click “Check the present counter values”. The screen below [Clearing the current protection counter value] appears. Be sure to replace the installed waste ink pad with a new one after or before you clear the current protection counter value.
  • Page 28 Revision A 5.2.1.6 Market Destination 2. The Market Destination Check screen shown below appears. For Stylus Color 660, the market destination is originally set. 1. To check the market destination, click “Market destination check” on the adjustment menu shown below.
  • Page 29 On the side face of the printhead. Printer mechanism: On the label of the packing box of the printer mechanism. 2. On Stylus COLOR 660 SERVICE PROGRAM, select Adjustment menu (Figure 5-16). 3. Select “Head voltage ID input”. Chapter 5...
  • Page 30 EPSON Stylus Color 660 Revision A 5. Select “Change data”, and the following screen appears. 7. Select “Check present data” on the previous screen (Figure 5-18). The screen below appears. Figure 5-19. Head voltage ID input (2) Figure 5-20. Check present data 6.
  • Page 31 2. Select “Head angular adjustment” in the adjustment menu(Figure 5-16). The following screen appears. 4. Move the carriage to the head angular adjustment. For Stylus COlor 660, the head angular adjustment is at the center, not at the ink cartridge replacing position. Chapter 5...
  • Page 32 EPSON Stylus Color 660 Revision A 5. Loosen the screw securing the printhead on the carriage. (You don't 6. Look at the black/magenta combination in the pattern and move the need to remove it completely.) adjusting lever to make the magenta lines stay between the black lines with even space.
  • Page 33 EPSON Stylus Color 660 Revision A 9. After tighten the screw, print the check pattern again to confirm. If there is any gap, make the adjustment again. If a certain amount of gap is generated at a certain direction by tightening the screw, make an adjustment considering the expected gap amount and tighten the screw.
  • Page 34 EPSON Stylus Color 660 Revision A 5.2.1.9 Bi-D Adjustment 2. Select “Print the Bi-D adjustment pattern” on the screen, and the screen bellow appears. You perform this adjustment to correct differences in printing positions, which is caused by incorrect printing timing in right and left directions during the Bi-directional printing.
  • Page 35 EPSON Stylus Color 660 Revision A 4. Go back to “Bi-D Adjustment” screen (Figure 5-25), select “Adjust”. The screen below appears. 200 CPS Bi-D Pattern: Data = -2 Left Gap 200 CPS Bi-D Pattern: Data = 0 Right Gap Figure 5-28. Adjust 200 CPS Bi-D Pattern: Data = 2 5.
  • Page 36 5.2.1.10 Print A4 Pattern 2. The printer starts printing the pattern, and the screen below appears. For Stylus Color 660, you can check all the adjustment has done correctly by executing “print A4 pattern”. 1. In the following screen, click OK.
  • Page 37 2. The following screen appears. Click OK. By using this program, you can clean the clogged nozzle. Stylus Color 660 alternately executes CL2 and Nozzle Check Pattern. 1. In the following screen, click OK. Figure 5-33. Recovery routine for clogged nozzle 3.
  • Page 38 C H A P T E R MAINTENANCE...
  • Page 39 EPSON Stylus Color 660 Revision A The contents of Maintenance is the same as of EPSON Stylus Color 640/660/740. Chapter 6 Maintenance...
  • Page 40 C H A P T E R APPENDIX...
  • Page 41 EPSON Stylus Color 660 Revision A The contents of Appendix is the same as of EPSON Stylus Color 640/ 660/740. Chapter 7 Appendix...
  • Page 42 CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment. CHAPTER 6. MAINTENANCE Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product. APPENDIX Provides the following additional information for reference: • Connector pin assignments •...
  • Page 43 REVISION STATUS Rev. Date Page(s) Contents 1998/07/15 First Release 1998/09/30 Page 188 The exploded diagrams and part list for the Stylus Color 740 has been added. Pages 195 to 212...

  • Page 44: Table Of Contents

    Product Description Power Supply Board C206 PSB/PSE (Stylus Color 440, 640) C257 PSB/PSE (Stylus Color 740)........... 40 Features ....................9 C206 PNL Board (Stylus Color 440, 640)......... 41 Specifications ..................11 C209 PNL Board (Stylus Color 740)..........41 Printing Specification................ 11 Paper Specification ................
  • Page 45 Disassembly Procedures..............104 Removing the Housing ..............105 Removing the Board Assembly ............106 Removing the Operation Panel ............108 Disassembling the Printer Mechanism ........... 109 Adjustment Overview....................130 Required Adjustments ..............130 Adjustment Tools Required ............131 Adjustment................... 132 Parallelism Adjustment..............

  • Page 46: Product Description

           PRODUCT DESCRIPTION...

  • Page 47: Features

    Compact size 429mm (W) x 231mm (D) x 155mm (H) (for Stylus Color 440) EPSON Stylus Color 440/640/740 are designed for PC users at home 429mm (W) x 231mm (D) x 157mm (H) (for Stylus Color 640) and low price for hat high performance. Also, Stylus Color 440 printer...
  • Page 48 S020187 Stylus Color 440,640 CMY Ink Cartridge S020191 Stylus Color 440,640,740 CMY Ink Cartridge EPSON 360 dpi Ink Jet Paper S041025 Size: A4 (200 sheets) EPSON 360 dpi Ink Jet Paper S041059 Size: A4 (100 sheets) EPSON 360 dpi Ink Jet Paper...

  • Page 49: Specifications

    EPSON Stylus Color 440/640/740 Revision A 1.2 Specifications Table 1-3. Graphic Mode Speed This section describes each specification for Stylus Color 440, 640, and Horizontal 740. Printable Area Available dot CR Speed Resolution 180 dpi 8.26 1488 20 IPS 1.2.1 Printing Specification 360 dpi 8.26...
  • Page 50 EPSON Stylus Color 440/640/740 Revision A 180DPI 180DPI 90DPI 90DPI 2.2578 mm 10.16 mm 2.2578 mm 7.9022 mm 2.2578 mm 10.16 mm 2.2578 mm 7.9022 mm M 19 M 20 M 21 (B2) (B1) (B2) (B1) Figure 1-1. Nozzle Configuration for Stylus Color 440 Figure 1-2.
  • Page 51 EPSON Stylus Color 440/640/740 Revision A Feeding method Friction feed with ASF 32/360" 32/360" 32/360" 112/360" 112/360" Line spacing 1/6 inches or programmable at 1/360 inches (only for Stylus Color 440) 1/6, 1/8 inches or programmable at 1/360 inches (for Stylus...
  • Page 52 <Stylus Color 440, 640> EPSON Roman T 10.5pt., 8pt. to 32 pt. (every 2 pt. unit) EPSON Sans Serif H 10.5pt., 8pt. to 32 pt. (every 2 pt. unit) PC437 (US, Standard Europe) PC850 (Multilingual) NOTE: The above typeface has 4 variations individually as follows;...

  • Page 53: Paper Specification

    EPSON Stylus Color 440/640/740 Revision A 1.2.2 Paper Specification 1.2.2.2 Transparency, Glossy Paper [Size] This section describes the printable area and types of paper that can be used in this printer. [Width 210mm (8.3”) x Length 297mm (11.7”)] Letter: [Width 216mm (8.5”) x Length 279mm (11.0”)] 1.2.2.1 Cut Sheet...
  • Page 54 EPSON Stylus Color 440/640/740 Revision A 1.2.2.4 Index Card [Size] A6 Index card: Width 105mm (4.1”) x Length 148mm (5.8”) A5 Index card: Width 148mm (5.8”) x Length 210mm (8.3”) 5x8” Index card: Width 127mm (5.0” x Length 203mm (8.0”) 10x8”...

  • Page 55: Printing Area

    EPSON Stylus Color 440/640/740 Revision A 1.2.3 Printing Area [Cut Sheet] See Figure 1-4 in the right column and the tables in the following page for the printable areas for Raster Graphics mode and Character mode. NOTE: Character mode is only suitable for Stylus Color 740.
  • Page 56 EPSON Stylus Color 440/640/740 Revision A Table 1-4. Raster Graphics Mode (for 3 models) Paper Size BM/min. 14 mm(0.54”) 210 mm (8.3”) 297 mm (11.7”) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.54”) Letter 216 mm (8.5”)
  • Page 57 EPSON Stylus Color 440/640/740 Revision A [Envelope] 1.2.3.1 Adjust Lever Setting Table 1-6 and Figure 1-5 show the printable area for envelopes. The adjustment lever located on the right side (dark blue) under the Table 1-6. Envelopes Margin printer cover needs to be set to the proper position according to the paper you print.

  • Page 58: Ink Cartridge Specifications

    EPSON Stylus Color 440/640/740 Revision A 1.2.4 Ink Cartridge Specifications [Black Ink Cartridge] 1 9 . 8 Table 1-8. Black Cartridge Specifications Items Specifications Type Exclusive Cartridge for Stylus Color 440, 640 Exclusive Cartridge only for Stylus Color 740 5 2 . 7 5 1 .
  • Page 59 EPSON Stylus Color 440/640/740 Revision A [Color Ink Cartridge] Table 1-9. Color I/C Specifications Items Specifications Type Exclusive Cartridge for Stylus Color 440, 640, 740 Color Print Capacity 300 pages / A4 (360 dpi, 5% duty each colors) 4 3 . 2...

  • Page 60: Environmental Condition

    EPSON Stylus Color 440/640/740 Revision A 1.2.5 Environmental Condition Resistance to shock Temperature Operating: 1G, within 1 ms X,Y,Z directions Operating :10 to 35 °C (Refer to Figure 1-8 for condition) Non-operating:2G, within 2 ms Non-operating:-20 to 60 °C (with shipment container) X,Y,Z directions (with shipment container) NOTE: 1 month at 40 °C and 120 hours at 60 °C...

  • Page 61: Electric Specification

    EPSON Stylus Color 440/640/740 Revision A 1.2.6 Electric Specification 1.2.7 Reliability [120V version] [Total print volume] [Rated voltage] AC120V Stylus Color 440: 10,000 pages (A4, Letter) [Input voltage range] AC99∼132V Stylus Color 640: 25,000 pages (A4, Letter) [Rated frequency range] 50∼60Hz...

  • Page 62: Acoustic Noise

    EPSON Stylus Color 440/640/740 Revision A 1.2.9 Acoustic Noise Stylus Color 440: Approximately 45 dB Stylus Color 640,740: Approximately 47 dB 1.2.10 CE Marking [220∼240 V version] Low Voltage Directive 73/23/EEC:EN60950 EMC Directive 89/336/EEC :EN55022 Class B :EN61000-3-2 :EN61000-3-3 :EN50082-1...

  • Page 63: Interface

    EPSON Stylus Color 440/640/740 Revision A 1.3 Interface See Table 1-10 in the following page which shows the signal and connector pin assignments for parallel interface (forward channel *1). In case of these signals, twist pair line is used and returning side is This printer provides parallel interface as standard.
  • Page 64 EPSON Stylus Color 440/640/740 Revision A Table 1-10. Parallel I/F Forward Channel Signal Return Pin No. In/Out Functional Description Name GND Pin The strobe pulse. Read-in of data is /STROBE performed at the falling edge of this pulse. The DATA0 through DATA7 signals represent data bits 0 to 7, respectively.

  • Page 65: Parallel Interface (Reverse Channel)

    EPSON Stylus Color 440/640/740 Revision A 1.3.2 Parallel Interface (Reverse Channel) NOTE: The printer sends following device ID string when it is requested. Table 1-11. Details of Device ID [Transmission mode] IEEE-1284 nibble mode [Synchronization] Refer to the IEEE-1284 specification...
  • Page 66 EPSON Stylus Color 440/640/740 Revision A Table 1-12. Parallel I/F Reverse Channel Return GND Pin No. Signal Name In/Out Functional Description HostClk Host clock signal. The DATA0 through DATA7 signals represent data bits 0 to7, respectively. Each signal is at high level...
  • Page 67 EPSON Stylus Color 440/640/740 Revision A The following are the points to note when using the parallel Interface. NOTE 1:“Return GND pin” in the table means twist pair return and is Byte Data n Data Byte Data n+1 used for all control signals except for Logic H,+5V, Chassis, Thold GND and NC.
  • Page 68 EPSON Stylus Color 440/640/740 Revision A Table 1-14. Typical Tack Timing 1.3.2.2 Auto Interface Selection (for Stylus Color 640, 740) Parallel I/F Mode Typical Tack Timing Manual Selection: 2us (for Stylus Color 440,640) One of two interfaces can be selected by the default setting mode.

  • Page 69: Serial Interface (For Stylus Color 640, 740)

    EPSON Stylus Color 440/640/740 Revision A 1.3.3 Serial Interface (for Stylus Color 640, 740) 1.3.3.1 USB Interface (Only for Stylus Color 740) [Standard] Universal Serial Bus Specifications Rev. 1.0 [Standard] Based on RS-423 Universal Serial Bus Device Class Definition [Synchronization] Synchronous for Printing Device Version 1.0...

  • Page 70: Control Panel

    EPSON Stylus Color 440/640/740 Revision A 1.4 Control Panel 1.4.1 Indicators (LEDs) (1) Power Since Stylus Color 440, 640, 740 does not require many buttons since Lights when the operate switch is “ON”, and AC power is supplied. printer driver can start various settings and motions. Therefore, there...

  • Page 71: Panel Functions

    EPSON Stylus Color 440/640/740 Revision A 1.4.2 Panel Functions Table 1-21. EEPROM Reset Switch Function Refer to Table 1-19 to Table 1-21. Cleaning Resets the EEPROM. (*5) 1. While the Load/Eject LED is blinking (for about 2 seconds), Table 1-19. Panel Functions press down the Cleaning switch for 10 seconds.

  • Page 72: Printer Condition And Panel Status

    EPSON Stylus Color 440/640/740 Revision A 1.4.3 Printer Condition and Panel Status Table 1-22 shows printer condition and panel status. Since the table shows various error status and also indicates printer status, it enables you to find appropriate repair ways.

  • Page 73: Error Status

    EPSON Stylus Color 440/640/740 Revision A 1.5 Error Status [Step 2] Even after the bubble absorbing ability described above stops, there is problem about entering bubbles as long as the ink cartridge is installed When following status occur, the printer goes to the error status and in the printer.

  • Page 74: No Ink-Cartridge

    EPSON Stylus Color 440/640/740 Revision A 1.5.4 No Ink-Cartridge 1.5.5 Maintenance Request Following reasons can be the causes when printer goes this error When the total quantity of ink wasted through the cleanings and flushing mode. reaches to the limit, printer indicates this error and stops. The absorber in the printer enclosure is needed to be replaced with new one by a 1.

  • Page 75: Printer Initialization

    EPSON Stylus Color 440/640/740 Revision A 1.6 Printer Initialization 1.7 Initialization Settings Stylus Color 440, 640, 740 have three kinds of initialization methods. Stylus Color 440, 640, 740 initializes following settings when the Following explains each initialization. initialization is performed. Also, if the user changes the settings in the Panel setting mode, Default setting or Remote command setting, values [1.Power-on initialization]...

  • Page 76: Main Components

    EPSON Stylus Color 440/640/740 Revision A 1.8 Main Components 1.8.1 Printer Mechanism Like the previous printer mechanism such as for Stylus Color 400, 600, Stylus Color 440, 640, 740 have following major units. Also, it is one of and Stylus Photo, one of the major characteristics of Stylus Color 440,...

  • Page 77: C206 Main-B Board (Stylus Color 440)

    EPSON Stylus Color 440/640/740 Revision A 1.8.2 C206 Main-B Board (Stylus Color 440) 1.8.3 C256 Main Board (Stylus Color 640) C206 Main-B board controls Stylus Color 440 and consists of following C256 Main board controls Stylus Color 640 and consists of following major electric elements.

  • Page 78: C257 Main Board (Stylus Color 740)

    EPSON Stylus Color 440/640/740 Revision A 1.8.4 C257 Main Board (Stylus Color 740) 1.8.5 Power Supply Board C206 PSB/PSE (Stylus Color 440, 640) C257 Main board controls Stylus Color 640 and consists of following C257 PSB/PSE (Stylus Color 740) major electric elements.

  • Page 79: C206 Pnl Board (Stylus Color 440, 640)

    EPSON Stylus Color 440/640/740 Revision A 1.8.6 C206 PNL Board (Stylus Color 440, 640) 1.8.7 C209 PNL Board (Stylus Color 740) Panel board (C206 PNL board) is located in the panel case where is in Panel board (C209 PNL board) is located in the panel case where is in...

  • Page 80: Operating Principles

           OPERATING PRINCIPLES...

  • Page 81: Overview

    EPSON Stylus Color 440/640/740 Revision A 2.1 Overview This section describes the operating principles of the printer mechanism and the electric circuit board. Electronic Boards for Stylus Color 440 are; Main: C206 Main-B, C255 Main Board Power Supply: C206 PSB,PSE Board...

  • Page 82: Printer Mechanism

    EPSON Stylus Color 440/640/740 Revision A 2.1.1 Printer Mechanism Like previous EPSON Ink Jet printers such as Stylus Color 400, 600, Carriage Unit Photo, Photo 700, Photo EX, the printer mechanism of Stylus Color (Print Head Unit) 440/640/740 does not have an exclusive mechanism to change over paper feeding and pumping operation.
  • Page 83 EPSON Stylus Color 440/640/740 Revision A 2.1.1.1 Printing Mechanism Nozzle Selector Board Basic principles of the print head which plays major role of printing mechanism is the same as previous models; on demand type MACH I/C Sensor's actuator head method, but there is some difference in the resolution. (Refer to...
  • Page 84 EPSON Stylus Color 440/640/740 Revision A 2.1.1.2 Printing Process Following figures show the sectional drawings of normal state and ejecting state of the printhead. Cavity Ink Course 1. Normal State: When the print signal is not output, PTZ also does not move in the waiting state (normal state).
  • Page 85 EPSON Stylus Color 440/640/740 Revision A 2.1.1.3 Carriage Mechanism Carriage mechanism is to drive the carriage with print head mounted Table 2-3. Motor Control at Each Modes (Stylus Color 740) from left to right or vice versa. The carriage drive motor in these printers...
  • Page 86 EPSON Stylus Color 440/640/740 Revision A See Figure 2-6 which shows the carriage mechanism. according to the printing result or any other environmental conditions such as paper curl. Carriage lock mechanism is to prevent the carriage from being left at an...
  • Page 87 EPSON Stylus Color 440/640/740 Revision A 2.1.1.3.1 Platen Gap Adjust Mechanism and Parallel adjustment 2.1.1.4 Paper Feed Mechanism and Pump Mechanism Mechanism Mechanisms that send the paper in the hopper to inside the printer and This mechanism can be set by the users and can prevent various...
  • Page 88 EPSON Stylus Color 440/640/740 Revision A Papers on the ASF (auto-sheet-feeder) supplied by the user are carried [Step 1] to the printer inside by paper pick up sequence. Unlike the previous When the load/Eject switch is pressed or printing order is input from...
  • Page 89 EPSON Stylus Color 440/640/740 Revision A [2. Paper pick up mechanism] Paper eject notched roller solves the deflection of paper that is in the When the Load/Eject switch is pressed or printing order is input, the between platen eject notched roller and paper eject roller and always carriage unit moves until the left edge and collides with paper pick up keep a certain space between print head and paper surface.
  • Page 90 EPSON Stylus Color 440/640/740 Revision A 2.1.1.5 Ink System Ink system mechanism consists of 1)cap mechanism, 2)pump mechanism, carriage lock mechanism, 4)waste ink absorber and 5)ink Printable Area sequence. Out of these mechanism, from 1) to 4) are physical 2976 dot(360-dpi) mechanism and parts which are mounted on the printer mechanism and 5) ink sequence is performed automatically by firmware.
  • Page 91 EPSON Stylus Color 440/640/740 Revision A 2.1.1.6 Pump, Carriage Lock, Head Cleaner Mechanism In the Stylus Color 440/640/740, there is no switch or mechanism to change over the pump/paper feed mechanism. Therefore, whenever Axis of Paper the paper feed/pump motor rotate, pump drive roller in the pump unit...
  • Page 92 EPSON Stylus Color 440/640/740 Revision A The table below shows PF/Pump motor rotational direction and pump system operation. Table 2-7. Relationship between Pump Motor Rotation and it’s Work CW Rotation CCW Rotation PF/Pump motor rotational direction Pump unit operation Clockwise (CW)
  • Page 93 EPSON Stylus Color 440/640/740 Revision A 2.1.1.6.1 Cap Mechanism In the cap mechanism, in order to prevent ink from being thickened on the head surface, it is controlled that the head surface stays adherent to the rubber frame of the cap surface when the power is off. The absorber...

  • Page 94: Electrical Circuit Operating Principles

    EPSON Stylus Color 440/640/740 Revision A 2.2 Electrical Circuit Operating Principles C206 PSB/PSE Board C206 Main-B Stylus Color 440/640/740 contains the following three electric circuit C257 PSB/PSE Board C255 Main boards. +5 V DC C256 Main C257 Main Electronic Boards for Stylus Color 440 are;...

  • Page 95: C206 Psb/Pse And C257 Psb/Pse Power Supply Board (For Stylus Color 440, 640, 740)

    EPSON Stylus Color 440/640/740 Revision A 2.2.1 C206 PSB/PSE and C257 PSB/PSE Power Figure 2-16 shows block diagram of C206 PSB/PSE board. The Supply Board (for Stylus Color 440, 640, 740) process from the input of AC voltage to the output of 42 V DC and 5 V is explained in the following pages.
  • Page 96 EPSON Stylus Color 440/640/740 Revision A 1) Regardless of the state of power switch (On or OFF), the voltage is The C206 PSB/PSE board has various control circuits to stop output if always applied in the primary side of the power supply board from malfunction on the power supply board, on the main board or on the the moment or at the state that AC-plug is plugged in.
  • Page 97 EPSON Stylus Color 440/640/740 Revision A When the power is turned on, Q1 repeats ON/OFF automatically along with the increase and decrease of energy on the trans coil at the primary side. While the power is being on, PSC signal is input to the power supply board from the C206 Main-B/C255/ C256/C257 Main board.

  • Page 98: C206 Main-B, C255 Main (For Stylus Color 440)

    EPSON Stylus Color 440/640/740 Revision A 2.2.2 C206 Main-B, C255 Main (for Stylus Color 440) Various DC voltage generated on the C206 PSB/PSE board is added various signals in order to drive the printer function on the C206 main-B, C255 main, board the drive of CR/PF (Pump) motor and printing head is performed.
  • Page 99 EPSON Stylus Color 440/640/740 Revision A [CPU] Parallel I/F control The 16-bit CPU which is mounted on Stylus Color 440 is running at With the use of IEEE1284 Nibble mode, it became possible not only 25Mhz. Gate array manages most of controls and monitors. Likewise...

  • Page 100: C256 Main (For Stylus Color 640)

    EPSON Stylus Color 440/640/740 Revision A 2.2.3 C256 Main (for Stylus Color 640) Various DC voltage generated on the C206 PSB/PSE board is added various signals in order to drive the printer function on the C256 main board, and the drive of CR/PF (Pump) motor and printing head is performed.
  • Page 101 EPSON Stylus Color 440/640/740 Revision A [CPU] Serial I/F Control The 16-bit CPU which is mounted on Stylus Color 640 is running at The gate array receives serial data through the transceiver IC. 25Mhz. Gate array manages most of controls and monitors. Likewise...

  • Page 102: C257 Main, (For Stylus Color 740)

    EPSON Stylus Color 440/640/740 Revision A 2.2.4 C257 Main, (for Stylus Color 740) Various DC voltage generated on the C257 PSB/PSE board is added various signals in order to drive the printer function on the C257 main board the drive of CR/PF (Pump) motor and printing head is performed.
  • Page 103 EPSON Stylus Color 440/640/740 Revision A [CPU] Timer Data The 16-bit CPU which is mounted on Stylus Color 740 is running at The timer IC that uses lithium battery as power source monitors how 24Mhz. Gate array manages most of controls and monitors. Likewise long the power is off.
  • Page 104 EPSON Stylus Color 440/640/740 Revision A 2.2.4.1 Reset Circuits [C206 Main-B, C255 Main for Stylus Color 440] The reset circuit prevents the CPU from running away, which is caused PST592D by the unstable voltage in the logic line during the power ON/OFF (IC8) operation.
  • Page 105 EPSON Stylus Color 440/640/740 Revision A [C256 Main for Stylus Color 640] The reset circuit prevents the CPU from running away, which is caused by the unstable voltage in the logic line during the power ON/OFF operation. And reset IC(IC9) monitors level of power voltage at the over...
  • Page 106 EPSON Stylus Color 440/640/740 Revision A [C257 Main for Stylus Color 640] 2.2.4.2 Sensor Circuits The reset circuit prevents the CPU from running away, which is caused The following sensor circuits are mounted in the Stylus Color 440/640/ by the unstable voltage in the logic line during the power ON/OFF 740 and selects appropriate operations based on the returned status.
  • Page 107 EPSON Stylus Color 440/640/740 Revision A The following three figures show the sensor circuits. Out of the data such as EPW with IEEE 1284 Nibble mode to be returned to the host, the data to indicate ink consumption is calculated and managed by the...
  • Page 108 EPSON Stylus Color 440/640/740 Revision A 2.2.4.3 EEPROM Control Circuits The EEPROM of Stylus Color 440/640/740 has following contents. Gate array controls operations of reading data when the power is on and writing data when the power is off. E05B43...
  • Page 109 EPSON Stylus Color 440/640/740 Revision A 2.2.4.4 Timer Circuit A lithium battery is mounted on the main board and calculates how long S-3510ANF (IC10) the printer is not used. The timer IC starts counting with oscillation motivated by the crystal oscillator using this battery as a power source.
  • Page 110 EPSON Stylus Color 440/640/740 Revision A 2.2.4.5 DRAM Control 2.2.4.6 Print Head Control Circuit In the Dynamic RAM control, output and formation of CAS and RAS The print head control circuit of Stylus Color 440/640/740 has following control signals become necessary in addition to the output of CS signal.
  • Page 111 EPSON Stylus Color 440/640/740 Revision A H8D2813(IC6) XOVM Data /STB /CLR GND2 GND2 GND2 E05B44(IC2) VHCTL VHCTL BIEN BHSO YCMIEN Data YCMHSO /STB ICLK /CLR BCHCLK NCHG /NCHG TMP95C061(IC1) Figure 2-32. Head Drive Circuit for Stylus Color 440 Chapter 2...
  • Page 112 EPSON Stylus Color 440/640/740 Revision A H8D2813(IC7) XOVM Data /STB /CLR GND2 GND2 GND2 E05B43(IC2) VHCTL VHCTL HSOIEN HSO1 Data HSO2 /STB HSO3 /CLR ICLK HCLK /NCHG NCHG TMP95C061(IC1) Figure 2-33. Head Driver Circuit for Stylus Color 640 Chapter 2...
  • Page 113 EPSON Stylus Color 440/640/740 Revision A [Common drive circuit] The shape of trapezoidal wave form will be different according to the printing operation, slight vibrations at the non-printing nozzle and waiting condition. However, the IC6(for Stylus Color 440), IC7(for Stylus...
  • Page 114 EPSON Stylus Color 440/640/740 Revision A 2.2.4.7 PF (Pump) Motor Drive Circuit IC15(LB1845) on C206 Main-B, C255 Main board, IC15(UDN2917) on C256 Main board, and IC12/13(A3956) on C257 Main board are used LB1B45 E05B44 for driving PF (Pump) motor. In the IC, Bi-pola drive PWM current...
  • Page 115 EPSON Stylus Color 440/640/740 Revision A PFIA0 A3956(IC13) PFIA1 OUTA PFIA2 OUTB PFPHAA PFIB0 PHASE PFIB1 PFIB2 PFPHAB E05B588(IC2) A3956(IC13) OUTA OUTB C90A05 (IC1) PHASE Current Detection M6252(IC16) Rotor Figure 2-37. PF (Pump) Motor Drive Circuit for Stylus Color 740...
  • Page 116 EPSON Stylus Color 440/640/740 Revision A 2.2.4.8 CR Motor Drive Circuit IC14(LB1845) on C206 Main-B, C255 Main board, IC14(UDN2917) on C256 Main board, and IC11(LB1847) on C257 Main board are used for driving CR motor. In the IC, Bi-pola drive PWM current control type is performed, making it possible to provide stable current to each phase of motor.
  • Page 117 EPSON Stylus Color 440/640/740 Revision A UDN2917 E05B43 (IC15) (IC2) CRA0 Out1A CRA1 Out1B CRA0 Out2A Rotor CRB1 Out2B CRAPH CRBPH MTBV0 MTBV1 MTBV2 Vref1 Vref2 MTBV3 MTBV4 MTAV0 MABV1 MTAV2 MTAV3 MTAV4 Figure 2-39. Carriage Motor Drive Circuit for Stylus Color 640...
  • Page 118 EPSON Stylus Color 440/640/740 Revision A LB1847(IC11) E05B588(IC2) CRIA0 CRIA1 CRIA2 CRIA3 CRIB0 OUTA CRIB1 OUTA- CRIB2 CRIB3 CRPHAA CRPHAB PHASE1 OUTB CRENBA PHASE2 OUTB- CRENBB ENBL1 C90A05 ENBL2 (IC1) Vref1 Vref2 Current Detection M6252(IC15) Rotor Figure 2-40. Carriage Motor Drive Circuit for Stylus Color 740...
  • Page 119        TROUBLESHOOTING...

  • Page 120: Troubleshooting

    EPSON Stylus Color 440/640/740 Revision A 3.1 Troubleshooting Table 3-1. Motor Resistance and Measurem ent Procedure Motor Name Location Check Point Resistance ± CR Motor • Stylus Color 440/640 Pins 1 & 3, 7.8 Ohms The printer may exhibit different symptoms for the same problem, which CN6 (Main board *) Pins 2 &...
  • Page 121 EPSON Stylus Color 440/640/740 Revision A Table 3-2. Sensor Check Sensor Name Location Signal Level Sensor Status • Stylus Color 440/640 Open: less than 0.7 V Paper loaded CN4/Pins 1 & 2 Paper End Senior • Stylus Color 740 Close: more than 2.4 V No paper CN5/Pins 1 &...
  • Page 122 EPSON Stylus Color 440/640/740 Revision A Table 3-3. Printer Condition and Panel Status Indicators Error Status Recovery Ink out Ink Out Power Paper Out (Black) (Color) Load paper by pressing the load/eject Paper Out button. Eliminate a paper then press the load/eject...

  • Page 123: Unit Level Troubleshooting

    EPSON Stylus Color 440/640/740 Revision A 3.2 Unit Level Troubleshooting 3.2.1 Printer does not operate at power on. When a problem occurs, you can identify the defective unit according to START the symptoms exhibits. The table below lists the symptoms of certain problems.

  • Page 124: Error Is Detected

    EPSON Stylus Color 440/640/740 Revision A 3.2.2 Error is detected 3.2.3 Failure occurs during printing START START Perform self- Check the error test printing message.(Refer to Table 3-3) Is printing carried out O.K? Turn off the printer, Is it a carriage...

  • Page 125: Printer Does Not Feed Paper Correctly

    EPSON Stylus Color 440/640/740 Revision A 3.2.4 Printer does not feed paper correctly. 3.2.5 Control panel operation is abnormal. START START Is the paper set control panel in the ASF connected correctly? correctly? Set the paper correctly Connect the control panel correctly.

  • Page 126: Unit Repair Of Power Supply Board

    EPSON Stylus Color 440/640/740 Revision A 3.3 Unit Repair of Power Supply Board Note: The power supply board equipped with each printer is as follows: S tylus Color 440: C206 PSB/PSE Stylus Color 640: C206 PSB/PSE Stylus Color 740: C257 PSB/PSE This section describes the problems related to the power supply board.
  • Page 127 EPSON Stylus Color 440/640/740 Revision A Table 3-5. Repair of the C206/C257 PSB/PSE Board Symptom Condition Cause Checkpoint Solution The printer does +42V line is dead. F1 is open. Check F1 by using a Replace F1. not operate at all.
  • Page 128 EPSON Stylus Color 440/640/740 Revision A Table 3-5. Repair of the C206/C257 PSB/PSE Board Symptom Condition Cause Checkpoint Solution (Continued) +5V line is dead. IC51 (L4962E/FA3635P) is Stylus Color 440/640: Replace IC51. dead. • Check the oscillation Note: (Pin 5) waveform of The printer does IC51.

  • Page 129: Unit Repair Of The Main Board

    EPSON Stylus Color 440/640/740 Revision A 3.4 Unit Repair of the Main Board Note: The Main board equipped with each printer is as follows: Stylus Color 440: C206MAIN-B, C255MAIN Stylus Color 640: C256MAIN Stylus Color 740: C257MAIN This section describes the problems related to the main controller board.
  • Page 130 EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms Condition Cause Check Point Solution The printer does not CPU does not operate. The reset circuit does not Stylus Color 440, 640: Replace IC9. operate at all.
  • Page 131 EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms Condition Cause Check Point Solution (Continued) (Continued) (Continued) Stylus Color 740: Stylus Color 740: The printer does not CPU does not operate. • If you can not find the waveform at 2, 128, 127-pin of IC1, •...
  • Page 132 EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms Condition Cause Check Point Solution (Continued) (Continued) Stylus Color 440, 640: Stylus Color 440: Stylus Color 440, 640: The carriage does not Carriage motor does not IC14 is dead.
  • Page 133 EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms Condition Cause Check Point Solution Paper feed operation is Paper feed motor does not IC2 is dead. Stylus Color 440: Replace IC2 abnormal. work. Check the waveform at 25, 18 pin of IC14.

  • Page 134: Repair Of The Printer Mechanism

    EPSON Stylus Color 440/640/740 Revision A 3.5 Repair of the Printer Mechanism This section provides instruction for repairing the printer mechanism. It describes various problems, symptom, likely causes, checkpoints, and solutions. Select appropriate symptom from the table and check each parts and its function as described in the checkpoint.
  • Page 135 EPSON Stylus Color 440/640/740 Revision A Table 3-7. Repair of the Printer Mechanism Symptom Condition Cause Check Point Solution Abnormal printing Only a particular dot Print head surface is not Perform the cleaning operation several Perform the cleaning. causes abnormal clean.
  • Page 136 EPSON Stylus Color 440/640/740 Revision A Table 3-7. Repair of the Printer Mechanism Symptom Condition Cause Check Point Solution Abnormal paper Paper is not fed. Friction of the PF roller. Check if the PF roller rotates when paper is Clean the PF roller by the cleaning feeding.

  • Page 137: Disassembly And Assembly

           DISASSEMBLY AND ASSEMBLY...

  • Page 138: Overview

    This chapter describes procedures for disassembling the main Wear protective goggles to protect your eyes from components of EPSON Stylus Color 440/640/740. Unless otherwise ink. If ink gets in your eye, flush the eye with fresh specified, disassembly units or components can be reassembled by water and see a doctor immediately.

  • Page 139: Tools

    EPSON Stylus Color 440/640/740 Revision A 4.1.2 Tools C A U T I O N Risque d’explosion si la pile est remplacée Table 4-1 lists the tools recommended for disassembling, assembling, incorrectment. Ne remplacer que par une pile du même or adjusting the printer.

  • Page 140: Specification For Screws

    EPSON Stylus Color 440/640/740 Revision A 4.1.3 Specification for Screws Table 4-2 shows screw specifications. During assembly and disassembly, make sure that the specified types of screws are used at proper locations, referring to the table below. Note that the screw numbers described in the manual correspond to the numbers in the table.

  • Page 141: Service Checks After Repair

    EPSON Stylus Color 440/640/740 Revision A 4.1.4 Service Checks After Repair Before returning the printer after servicing, use the check list below, which enables you to keep record of servicing and shipping more efficiently. Table 4-3. Inspection Checklist for the Repaired Printer...

  • Page 142: Disassembly Procedures

    EPSON Stylus Color 440/640/740 Revision A 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. Remove the Housing Refer to 3.2.1 Remove the Remove the Board Assembly Printer Mechanism 3.2.2 3.2.4 Remove the operation panel 3.2.3 Remove Remove the Pump...

  • Page 143: Removing The Housing

    EPSON Stylus Color 440/640/740 Revision A 4.2.1 Removing the Housing (No.2) Since the printer mechanism itself structures the bottom part, the printer mechanism appears just by removing the housing. 1. Open the printer cover and turn the PG adjustment lever towards (+) side.

  • Page 144: Removing The Board Assembly

    EPSON Stylus Color 440/640/740 Revision A 4.2.2 Removing the Board Assembly Since the main board and power supply circuit board are built in a Since the connectors CN 6,7,10(for 440, 640) and C A U T I O N separate bracket from the printer mechanism, remove the whole CN7,8,10(for 740) have connector locks, be sure to bracket from the printer mechanism.
  • Page 145 EPSON Stylus Color 440/640/740 Revision A (No.1) Main Board (No.1) [Cable Holder A and B] Power Supply Board (No.6) M/B Shield plate (No.1) (No.1) M/B Shield Plate (No.1) Figure 4-3. Removing the M/B Shield Plate Figure 4-4. Removing the Boards...

  • Page 146: Removing The Operation Panel

    EPSON Stylus Color 440/640/740 Revision A 4.2.3 Removing the Operation Panel The panel board equipped with each printer is as follows: - Stylus Color 440/640: C206PNL P a n e l S h i e l d P l a t e...

  • Page 147: Disassembling The Printer Mechanism

    EPSON Stylus Color 440/640/740 Revision A 4.2.4 Disassembling the Printer Mechanism Make sure that the earth board is installed to the C H E C K P O I N T Since Stylus Color 440/640/740 do not have the lower housing, the carriage correctly.
  • Page 148 EPSON Stylus Color 440/640/740 Revision A F a s t e n e r H e a d O n l y f o r 7 4 0 F F C N o t e : T h e r e i s n o a c t u a t o r s o n t h e p r i n t h e a d f o r S t y l u s C o l o r 7 4 0 .
  • Page 149 EPSON Stylus Color 440/640/740 Revision A This part should Make sure that this be touching the protrusion is in the CR shaft receiver. U ditch of the priht head side. Make sure that the protrusion of the carriage is aligned with the hole of the earth board.
  • Page 150 EPSON Stylus Color 440/640/740 Revision A 4.2.4.2 Removing the Absorber Tray Assembly ;A 1. Remove the housing. (Refer to Section 4.2.1.) ( N o . 4 ) 2. Remove the operation panel. (Refer to Section 4.2.3.) 3. Remove one screw (No.4) securing “Absorber tray assembly”...
  • Page 151 EPSON Stylus Color 440/640/740 Revision A 4.2.4.3 Removing the Pump Assembly and Cap Assembly Do not damage the rubber part (black square) of the C A U T I O N 1. Remove the housing. (Refer to Section 4.2.1.) cap installed in the cap assembly. (If it gets damaged, it will not be able to adhere closely to the surface of 2.
  • Page 152 EPSON Stylus Color 440/640/740 Revision A Loosen screws on the right and left sides and float the Paper eject frame assembly. Release three hooks from the interior of the right frame assembly. Pump Assembly Cap Assembly (No.5) Release a hook from the back...
  • Page 153 EPSON Stylus Color 440/640/740 Revision A Head Cleaner Order of assembling the pump parts. Figure 4-10. Component of Pump Assembly Chapter 4 Disassembly and Assembly...
  • Page 154 EPSON Stylus Color 440/640/740 Revision A 4.2.4.4 Removing the CR Motor Assembly 1. Remove the housing. (Refer to Section 4.2.1) ( N o . 1 ) 2. Rotate the gear 67.2 toward you and release the carriage lock mechanism, then move the carriage to the center.
  • Page 155 EPSON Stylus Color 440/640/740 Revision A 4.2.4.5 Removing the PF Motor Assembly [For Stylus Color 740] G e a r 3 4 1. Remove the housing.(Refer to Section 4.2.1.) 2. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 3.
  • Page 156 EPSON Stylus Color 440/640/740 Revision A [For Stylus Color 440, 640] 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 3. Remove the 2 screws securing the PF motor assembly. to the frame.
  • Page 157 EPSON Stylus Color 440/640/740 Revision A 4.2.4.6 Removing the ASF Assembly 1. Remove the housing. (Refer to Section 4.2.1.) C R S h a f t I n s t a l l a t i o n S c r e w 2.
  • Page 158 EPSON color goes on the left of the 6. Remove the right and left sides of the hopper assembly from the shaft.
  • Page 159 EPSON Stylus Color 440/640/740 Revision A H o p p e r A s s e m b l y B r a k e L e v e r T o r s i o n S p r i n g 4 1 . 2...
  • Page 160 EPSON Stylus Color 440/640/740 Revision A 4.2.4.6.2 Removing the Right and Left LD Roller Assembly L D R o l l e r C o v e r 1. Disassemble the ASF assembly and remove the paper feed roller ( R i g h t a n d L e f t ) assembly and hopper assembly from the ASF assembly.
  • Page 161 EPSON Stylus Color 440/640/740 Revision A 4.2.4.7 Removing the Carriage Assembly When disassembling the right parallelism adjustment C H E C K 1. Remove the housing. (Refer to Section 4.2.1) P O I N T bushing, mark present location where the bushing is fixed on the frame so that you can omit gap 2.
  • Page 162 EPSON Stylus Color 440/640/740 Revision A C a r r i a g e A s s e m b l y L e f t P a r a l l e l i s m A d j u s t m e n t B u s h i n g...
  • Page 163 EPSON Stylus Color 440/640/740 Revision A 4.2.4.8 Removing the PF Roller Assembly 1. Remove the housing.(Refer to Section 4.2.1.) U p p e r P a p e r G u i d e 2. Remove the carriage assembly.(Refer to Section 4.2.4.7.)
  • Page 164 EPSON Stylus Color 440/640/740 Revision A F r o n t P a p e r G u i d e ; B A l i g n t h e p r o t r u s i o n i n t h e P F r o l l e r a s s e m b l y w i t h t h e h o l e i n t h e f r a m e f o r h o l d i n g t h e s h a f t .
  • Page 165 EPSON Stylus Color 440/640/740 Revision A 4.2.4.9 Removing the PE Paper Detector Assembly A f t e r r e l e a s i n g t w o h o o k s , r e m o v e 1.
  • Page 166 EPSON Stylus Color 440/640/740 Revision A 4.2.4.10 Removing the HP Detector 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the cable from the HP detector and take it out after releasing the fixed hook. H P D e t e c t o r Figure 4-24.

  • Page 167: Adjustment

           ADJUSTMENT...

  • Page 168: Overview

    EPSON Stylus Color 440/640/740 Revision A 5.1 Overview Table below shows the actions taken and required adjustments in the order to be performed. This chapter describes adjustments required when the printer is disassembled and assembled after repair. Table 5-2 Actions Taken and Adjustment Required...

  • Page 169: Adjustment Tools Required

    EPSON Stylus Color 440/640/740 Revision A 5.1.2 Adjustment Tools Required Table 5-3 below shows adjustment tools for Stylus Color 440/640/740. Table 5-3 Adjustment Tools Required Name Adjustment Item Contents/Spec. Thickness Gauge Parallelism Adjustment 1.04 mm Adjustment Program Each Mechanism Settings Exclusive Program;...

  • Page 170: Adjustment

    EPSON Stylus Color 440/640/740 Revision A 5.2 Adjustment Put the thickness gauge on the flat side of the C H E C K P O I N T rib of the front paper guide ;B. This section explains specific procedures for each adjustment required When you move the carriage, move it, pulling for Stylus Color 440/640/740.
  • Page 171 EPSON Stylus Color 440/640/740 Revision A [Fixing Parallelism Adjustment Bushing] 13. Fix the right and left parallelism adjustment bushings with screws. (No.1 screw for each.) When completing this adjustment, check the overlap amount of the printhead and head cleaner. 1. Rotate the gear 67.2 and move the head cleaner to the printer rear side.

  • Page 172: Adjustment By Adjustment Program

    EPSON Stylus Color 440/640/740 Revision A 5.2.2 Adjustment by Adjustment Program The flowchart below shows the steps to follow before entering the main menu. In this printer, it is necessary to set the correct information for each printer mechanism in order to maintain consistent printing function and...
  • Page 173 EPSON Stylus Color 440/640/740 Revision A Main menu ESC Key Return Key A4 Check Maintenance Adjustment Pattern Head Cleaning(CL2) Market/Destination Check Ink Charge Flag Reset Head Voltage ID Input Head Angular Adjustment Transportation Liquid Charge Bi-D Adjustment Protection Counter value Figure 5-5.
  • Page 174 EPSON Stylus Color 440/640/740 Revision A 5.2.2.2 Entering the Main menu 4. Following screen appears. Before performing any adjustment, you need to enter the main menu, however, you may have to take the following extra steps before entering the main menu depending on the printer model name and mode name registration status.
  • Page 175 EPSON Stylus Color 440/640/740 Revision A 5. After a few seconds, the model name appears on the screen shown 6. The main menu shown below appears. below. Proceed to one of the following steps. If the printer is Stylus Color 440 or 640, go to...
  • Page 176 EPSON Stylus Color 440/640/740 Revision A 5.2.2.2.1 Registering the printer model name Type the correct model name, referring to the box below. 1. If no model name is registered, the screen shown below appears. Press Stylus_COLOR_440 the E key while pressing the Alt key, and the program advances to Stylus_COLOR_640 the Model Name Input Screen.
  • Page 177 EPSON Stylus Color 440/640/740 Revision A 5.2.2.2.2 Setting the CG (Destination information) (For Stylus (For Stylus Color 740 only) Color 740 only) Perform one of the followings: Since there are two models for Stylus Color 740, the standard model If your Stylus Color 740 supports the NLSP characters, select and NLSP model, you are required to set the correct CG according to NLSP by using the reverse carols.
  • Page 178 EPSON Stylus Color 440/640/740 Revision A 5.2.2.3 Initial Ink Charge Operation 3. By using the Up/Down arrow key, select Ink Charge Flag Reset in the maintenance menu (Figure 5-12), and the Initial Ink Charge There is no ink charged in the ink path of a spare printhead and printer Menu below appears.
  • Page 179 EPSON Stylus Color 440/640/740 Revision A 5.2.2.4 Head Cleaning Operation 1. Enter the main menu. (Refer to Section 5.2.2.2.) Different from the previous models, Stylus Color 440, 640, and 740 2. Apply the Maintenance menu (Figure 5-12). have no dummy cleaning sequence called CL3, which was performed to 3.
  • Page 180 EPSON Stylus Color 440/640/740 Revision A 5.2.2.5 Protection Counter Indicate/Reset 4. Press the Enter key while the reverse cursor is indicating Check the protect counter value. The screen below appears. The program provided with this manual can let you confirm or clear the current protection counter value.
  • Page 181 EPSON Stylus Color 440/640/740 Revision A [Clearing the current protection counter value] 5. Press the Enter key while the reverse cursor is indicating Already replaced. The screen below appears. 1. Enter the main menu. (Refer to Section 5.2.2.2 ) 2. Apply the maintenance menu.
  • Page 182 EPSON Stylus Color 440/640/740 Revision A 5.2.2.6 Market/Destination Check (only for Stylus Color 740) 1. Enter the main menu. (See Section 5.2.2.2 .) As already mentioned, there are two models for Stylus Color 740, 2. Apply the adjustment menu. The following screen appears.
  • Page 183 EPSON Stylus Color 440/640/740 Revision A 4. Press the Enter key, and the screen below appears. The terms World and Standard show the current value set in the destination and CG addresses in the EEPROM. Figure 5-21. Market/Destination Confirmation Menu 5.
  • Page 184 EPSON Stylus Color 440/640/740 Revision A 5.2.2.7 Head Voltage ID Input 4. By using the Up/Down arrow key, select Head Voltage ID Input in the adjustment menu. (Figure 5-19.) Head voltage value adjustment function enables you to write printhead The following screen appears.
  • Page 185 EPSON Stylus Color 440/640/740 Revision A 6. When you input the head ID value, the screen automatically 7. Press the Esc key once. The screen returns to the Head Voltage ID advances consequently, as shown below: Check/Input Select Menu. (See Figure 5-22.) 8.
  • Page 186 EPSON Stylus Color 440/640/740 Revision A 5.2.2.8 Head Angular Adjustment 2. Apply the main menu (Figure 5-21). (See Section 5.2.2.2.) During production, slight variations are created in printheads and 3. By using the Up/Down arrow key, select Adjustment in the main carriage (which are used as a printhead base.) If these differences are...
  • Page 187 EPSON Stylus Color 440/640/740 Revision A 6. Look at the black/magenta combination in the pattern and move the Head Angular Adjustment Pattern (BK-M) adjusting lever to make the magenta lines stay between the black lines with even space. The figure below shows how the pattern changes as the adjusting lever moves right (rear) or left (front).
  • Page 188 EPSON Stylus Color 440/640/740 Revision A 7. After changing the position of the adjust lever, select Head angular adjustment pattern again. The printer prints out a head angular adjustment pattern and the screen automatically returns to the Current Head Angular Confirmation Menu (1) shown in the figure below.
  • Page 189 EPSON Stylus Color 440/640/740 Revision A 5.2.2.9 Bi-D Adjustment 4. By using the Up/Down arrow key, select Print the Bi-D adjustment pattern on the screen, and the screen bellow appears. You perform this adjustment to correct differences in printing positions, which is caused by slippage of printing timing in right and left directions during the Bi-directional printing.
  • Page 190 EPSON Stylus Color 440/640/740 Revision A 6. By using the Up/Down key, select Adjust on the Bi-D adjustment menu (Figure 5-32). Then the screen below appears. 200 CPS Bi-D Pattern : Data = -2 Left Gap 200 CPS Bi-D Pattern : Data = 0 Right Gap Figure 5-35.

  • Page 191: Maintenance

           MAINTENANCE...

  • Page 192: Overview

    EPSON Stylus Color 440/640/740 Revision A 6.1 Overview 6.1.2 Service Maintenance If print irregularity (missing dot, white line, etc.) has occurred or the This section describes the points and the procedures for maintaining printer indicates “MAINTENANCE ERROR”, take the following actions the printer in its optimum condition.

  • Page 193: Lubrication

    EPSON Stylus Color 440/640/740 Revision A 6.1.3 Lubrication Table 6-2. Lubrication Point Standard Remarks The type and amount of oil and grease used to lubricated the printer <Lubrication Point> Do not put grease around the paper parts are determined based on the results of internal evaluations.
  • Page 194 EPSON Stylus Color 440/640/740 Revision A Table 6-2. Lubrication Point Table 6-2. Lubrication Point Standard Remarks Standard Remarks <Lubrication Point> Use a syringe to apply it. <Lubrication Point> Completely wipe off any grease sticking out to the inner side of ASF.
  • Page 195 EPSON Stylus Color 440/640/740 Revision A Never apply oil to the CR guide shaft directly. This W A R N I N G may cause fatal damage to the components of the printer. N o . 2 Avoid applying oil excessively to the oil pad. This...
  • Page 196 EPSON Stylus Color 440/640/740 Revision A N o . 5 N o . 4 " G E A R , 3 4 " N o . 3 " G E A R , 2 3 . 2 " " G E A R , 1 6 , 4 0 . 8 "...
  • Page 197 EPSON Stylus Color 440/640/740 Revision A N o . 6 " H O P P E R , A S S E M B L Y " N o . 1 0 N o . 7 " F R A M E , A S F "...

  • Page 198: Appendix

           APPENDIX...

  • Page 199: Connector Summary

    EPSON Stylus Color 440/640/740 Revision A A.1 Connector Summary This section gives information on connectors and their pin assignment. Since all connectors and their pin assignments except for CN8 (printhead) are common for Stylus Color 440 and Stylus Color 640, they...

  • Page 200: Connector Summary (Stylus Color 440/640)

    EPSON Stylus Color 440/640/740 Revision A A.1.1 Connector Summary (Stylus Color 440/640) This section provides information on connectors in the main units of the Stylus Color 440 and Stylus Color 640. Figure 1 shows how the main component units are connected.
  • Page 201 EPSON Stylus Color 440/640/740 Revision A A.1.1.1 Connector Pin Assignment (Stylus Color 440 and Stylus Color 640) Table A-2. Connector CN3 Signal Name Function Tables in this section provide connector pin assignments of the LED0 LED drive signal (0) C206MAIN-B, C255MAIN and C256MAIN, the main boards equipped...
  • Page 202 EPSON Stylus Color 440/640/740 Revision A Table A-5. Connector CN6 Table A-7. Connector CN8 (C206MAIN-B, C255MAIN) Signal Name Function Signal Name Function Phase drive signal (A) Black ink cartridge detect signal Phase drive signal (B) Color ink cartridge detect signal...
  • Page 203 EPSON Stylus Color 440/640/740 Revision A Table A-8. Connector CN8 (C256MAIN) Table A-9. Connector CN10 Signal Name Function Signal Name Function Black ink cartridge detect signal +42V Mechanism drive power supply Color ink cartridge detect signal +42V Mechanism drive power supply...

  • Page 204: Connector Summary For Stylus Color 740

    EPSON Stylus Color 440/640/740 Revision A A.1.2 Connector Summary for Stylus Color 740 This section contains information on connectors in the main units of Stylus Color 740. Figure 2 shows how the main component units of the Stylus Color 740 are connected.
  • Page 205 EPSON Stylus Color 440/640/740 Revision A A.1.2.1 Connector Pin Assignment (Stylus Color 740) Table A-13. Connector CN5 Tables in this section provide connector pin assignments of the Signal Name Function C257MAIN, the main board equipped with Stylus Color 740. Sensor detect signal...
  • Page 206 EPSON Stylus Color 440/640/740 Revision A Table A-17. Connector CN9 Table A-18. Connector CN10 Signal Name Function Signal Name Function Black ink cartridge detect signal +42V Mechanism drive power supply Color ink cartridge detect signal +42V Mechanism drive power supply...

  • Page 207: Eeprom Address Map

    EPSON Stylus Color 440/640/740 Revision A A.2 EEPROM Address Map A.2.1 EEPROM ADDRESS Map (Stylus Color 440/ 640) This section contains EEPROM map for Stylus Color 440/640 and This section provides EEPROM address map for the Stylus Color 440 Stylus Color 740. As it is in Section A.2, this section is separated in 2 and Stylus Color 640.
  • Page 208 EPSON Stylus Color 440/640/740 Revision A Table A-20. Table A-21. Stylus Color 440/640 EEPROM Address Map Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings ∗ Password 0...
  • Page 209 EPSON Stylus Color 440/640/740 Revision A Table A-22. Table A-23. Stylus Color 440/640 EEPROM Address Map (Continued) Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Password 2...
  • Page 210 EPSON Stylus Color 440/640/740 Revision A Table A-24. Table A-25. Stylus Color 440/640 EEPROM Address Map (Continued) Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings CR-phase of...
  • Page 211 EPSON Stylus Color 440/640/740 Revision A Notes: Table A-26. **: Change model name of IEEE1284 device ID Stylus Color 440/640 EEPROM Address Map (Continued) *1.Adjusted at factory. QPIT Factory *2.Initialized after panel initialization is performed. Address Explanation Setting Settings Settings *3.01H is a factory setting for pacific market.

  • Page 212: Eeprom Address Map (Stylus Color 740)

    EPSON Stylus Color 440/640/740 Revision A A.2.2 EEPROM Address Map (Stylus Color 740) Table A-29. Stylus Color 740 EEPROM Address Map QPIT Factory This section provides EEPROM address map for the Stylus Color 740. Address Explanation Setting Settings Settings Password 0...
  • Page 213 EPSON Stylus Color 440/640/740 Revision A Table A-30. Table A-31. Stylus Color 740 EEPROM Address Map (Coutinued) Stylus Color 740 EEPROM Address Map (Coutinued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Head actuator...
  • Page 214 EPSON Stylus Color 440/640/740 Revision A Table A-32. Table A-33. Stylus Color 740 EEPROM Address Map (Coutinued) Stylus Color 740 EEPROM Address Map (Coutinued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings CG table 0: Italic U.S.A., 1: Italic France,...
  • Page 215 EPSON Stylus Color 440/640/740 Revision A Table A-34. Table A-35. Stylus Color 740 EEPROM Address Map (Coutinued) Stylus Color 740 EEPROM Address Map (Coutinued) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Ink counter Cm...

  • Page 216: Circuit Board Component Layouts

    EPSON Stylus Color 440/640/740 Revision A A.3 Circuit Board Component Layouts This section is composed of the following components layouts. C206MAIN-B (Stylus Color 440) C256MAIN (Stylus Color 640) C257MAIN (Stylus Color 740) C206PSB/PSE (Stylus Color 440/640) C257PSB/PSE (Stylus Color 740)
  • Page 217 EPSON Stylus Color 440/640/740 Revision A Figure A-3. C206MAIN-B Board Component Layout (1/2) (Stylus Color 440) Chapter 7 Appendix...
  • Page 218 EPSON Stylus Color 440/640/740 Revision A Figure A-4. C206MAIN-B Board Component Layout (2/2) (Stylus Color 440) Chapter 7 Appendix...
  • Page 219 EPSON Stylus Color 440/640/740 Revision A Figure A-5. C256MAIN Board Component Layout (1/2) (Stylus Color 640) Chapter 7 Appendix...
  • Page 220 EPSON Stylus Color 440/640/740 Revision A Figure A-6. C256MAIN Board Component Layout (2/2) (Stylus Color 640) Chapter 7 Appendix...
  • Page 221 EPSON Stylus Color 440/640/740 Revision A Figure A-7. C257MAIN Board Component Layout (1/2) (Stylus Color 740) Chapter 7 Appendix...
  • Page 222 EPSON Stylus Color 440/640/740 Revision A Figure A-8. C257MAIN Board Component Layout (2/2) (Stylus Color 740) Chapter 7 Appendix...
  • Page 223 EPSON Stylus Color 440/640/740 Revision A Figure A-9. Figure A-10. C206PSB Board Component Layout (Stylus Color 440/640) C206PSE Board Component Layout (Stylus Color 440/640) Chapter 7 Appendix...
  • Page 224 EPSON Stylus Color 440/640/740 Revision A Figure A-12. Figure A-11. C257 PSE Board Component Layout (Stylus Color 740) C257 PSB Board Component Layout (Stylus Color 740) Chapter 7 Appendix...
  • Page 225 EPSON Stylus Color 440/640/740 Revision A Figure A-14. C209PNL Component Layout Figure A-13. C206PNL Component Layout Chapter 7 Appendix...

  • Page 226: Exploded Diagrams

    EPSON Stylus Color 440/640/740 Revision B A.4 Exploded Diagrams This section contains the following exploded diagrams. Exploded diagram for Stylus Color 440 (1/3, 2/3, 3/3) Exploded diagram for Stylus Color 640 (1/3, 2/3, 3/3) Exploded diagram for Stylus Color 740 (1/3, 2/3, 3/3)
  • Page 227 EPSON Stylus Color 440/640/740 Revision A for LATIN for LATIN for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (1/3) REV.1.0 10001 Chapter 7 Appendix...
  • Page 228 EPSON Stylus Color 440/640/740 Revision A EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (2/3) REV.1.0 10001 Chapter 7 Appendix...
  • Page 229 EPSON Stylus Color 440/640/740 Revision A (506) (565) (501) 564 562 (505) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (3/3) REV.1.0 10001 Chapter 7 Appendix...
  • Page 230 EPSON Stylus Color 440/640/740 Revision A for EUR.,S.E.ASIA,OCEANIA EKL,RUSSIA for USA for LATIN for LATIN for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (1/3) REV.1.0 10002 Chapter 7 Appendix...
  • Page 231 EPSON Stylus Color 440/640/740 Revision A EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (2/3) REV.1.0 10002 Chapter 7 Appendix...
  • Page 232 EPSON Stylus Color 440/640/740 Revision A (506) (565) (501) 564 562 (505) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (3/3) REV.1.0 10002 Chapter 7 Appendix...
  • Page 233 EPSON Stylus Color 440/640/740 Revision B for EAI, LATIN for LATIN for EAI for ETT For EUR,S.E.ASIA, OCEANIA,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (1/3) Rev.01 10004 Chapter 7 Appendix...
  • Page 234 EPSON Stylus Color 440/640/740 Revision B EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (2/3) Rev.01 10004 Chapter 7 Appendix...
  • Page 235 EPSON Stylus Color 440/640/740 Revision B (506) (565) (501) 564 562 542 544 542 544 542 544 (505) EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (3/3) Rev.01 10004 Chapter 7 Appendix...

  • Page 236: Part List

    EPSON Stylus Color 440/640/740 Revision B A.5 Part List Table A-37. Part List for Stylus Color 440/640 (2/4) Part Name Part Name 514 Bushing, Parallelism Adjustment, 546 Paper Guide, Right Part List A.5.1 for Stylus Color 440/640 Right 515 Paper Guide, Rear 547 Paper Guide, Left Table A-36.
  • Page 237 EPSON Stylus Color 440/640/740 Revision B Table A-38. Part List for Stylus Color 440/640 (3/4) Table A-39. Part List for Stylus Color 440/640 (4/4) Part Name 578 Push Nut, 2 724 Roller, LD, Sub 757 Holder, Paper Support, Sub, Upper...

  • Page 238: Part List For Stylus Color 740

    EPSON Stylus Color 440/640/740 Revision B Part List A.5.2 for Stylus Color 740 Table A-41. Part List for Stylus Color 740 (2/4) Table A-40. Part List for Stylus Color 740 (1/4) 519 Lever, Change 550 Roller, Driven;D 520 Spur Gear, 26.4 551 Torsion Spring, 117.6...
  • Page 239 EPSON Stylus Color 440/640/740 Revision B Table A-42. Part List for Stylus Color 740 (3/4) Table A-43. Part Lis for Stylus Color 740 (4/4) 586 CBS-Tite Screw 719 Holder, Edge Guide, Right 752 Absorber, Waste Ink, Large 587 CBS-Tite Screw, M3x6 720 Compression Spring, 1.17...

  • Page 240: Circuit Diagrams

    EPSON Stylus Color 440/640/740 Revision B A.6 Circuit Diagrams See the following pages for the circuit diagrams below. NOTE: For circuit diagram for C206MAIN-B, refer to the hard copies, as no pdf files for it is provided. C206MAIN-B circuit diagram 1/2, 2/2 See the hard copies.
  • Page 241 EPSON Stylus Color 440/640/740 Revision B C206MAIN-B Circuit diagrams 1of 2 See the hard copy. Chapter 7 Appendix...
  • Page 242 EPSON Stylus Color 440/640/740 Revision B C206MAIN-B Circuit diagrams 2 of 2 See the hard copy. Chapter 7 Appendix...
  • Page 246 EPSON Stylus Color 440/640/740 Revision B C206PSB 1/1 Chapter 7 Appendix...
  • Page 247 EPSON Stylus Color 440/640/740 Revision B C206PSE 1/1 Chapter 7 Appendix...
  • Page 251 EUR.,S.E.ASIA,OCEANIA EKL,RUSSIA for USA for LATIN for LATIN for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 660 (1/3) REV.1.0 10002...
  • Page 252 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 660 (2/3) REV.1.0 10002...
  • Page 253 (506) (565) (501) 564 562 (505) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 660 (3/3) REV.1.0 10002...
  • Page 254 2 (For S.E.ASIA) PACKING MATERIAL FOR EPSON STYLUS COLOR 660 REV. 1.0 10002...

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